<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <p>
        <a-form layout="inline" :model="param">
          <a-form-item>
            <a-button
                type="primary"
                @click="handleQuery()"
            >
              查询
            </a-button>
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="add()">
              新增
            </a-button>
          </a-form-item>
        </a-form>
      </p>
      <a-table
          :columns="columns"
          :row-key="record => record.id"
          :data-source="level1"
          :loading="loading"
          :pagination="false"
      >
        <template #cover="{ text: cover }">
          <img v-if="cover" :src="cover" alt="avatar" />
        </template>
        <template v-slot:action="{ text, record }">
          <a-space size="small">
            <a-button type="primary" @click="edit(record)">
              编辑
            </a-button>
            <a-popconfirm
                title="删除后不可恢复，确认删除？"
                ok-text="是"
                cancel-text="否"
                @confirm="handleDelete(record.id)"
            >
              <a-button type="danger">
                删除
              </a-button>
            </a-popconfirm>
          </a-space>
        </template>
      </a-table>
    </a-layout-content>
  </a-layout>

  <a-modal
    title="分类表单"
    v-model:visible="modalVisible"
    :confirm-loading="modalLoading"
    @ok="handleModalOk"
  >
    <p>
      <a-form :model="category" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">
        <a-form-item label="名称">
          <a-input v-model:value="category.name"/>
        </a-form-item>

        <a-form-item label="父分类">
          <a-select
              ref="select"
              v-model:value="category.parent"
          >
            <a-select-option value="0">无</a-select-option>
            <a-select-option v-for="c in level1" :key="c.id" :value="c.id" :disabled="category.id === c.id">{{c.name}}</a-select-option>

          </a-select>
        </a-form-item>
        <a-form-item label="顺序">
          <a-input v-model:value="category.sort"/>
        </a-form-item>
      </a-form>
    </p>
  </a-modal>

</template>

<script lang="ts">
import { defineComponent, onMounted, ref } from 'vue';
import axios from 'axios';
import {message} from 'ant-design-vue';
import {Tool} from "@/util/tool";

export default defineComponent({
  name: 'AdminCategory',
  setup() {
    const param = ref();
    param.value={};
    const categorys = ref();
    const loading = ref(false);

    const columns = [
      {
        title: '名称',
        dataIndex: 'name'
      },
      {
        title: '父分类',
        key: 'parent',
        dataIndex: 'parent'
      },
      {
        title: '顺序',
        dataIndex: 'sort'
      },
      {
        title: 'Action',
        key: 'action',
        slots: { customRender: 'action' }
      }
    ];
    //一级分类树，children属性就是二级分类
    const level1 = ref();

    /**
     * 数据查询
     **/
    const handleQuery = () => {
      loading.value = true;
      level1.value=[];
      axios.get("/category/all").then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success){
          categorys.value = data.content;
          console.log("原始数组:",categorys.value)

          level1.value=[];
          level1.value = Tool.array2Tree(categorys.value,0);
          console.log("树形结构：",level1);
        }else{
          message.error(data.message);
        }

      });
    };

    //------------- 表单 ------------
    const category = ref({});
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const handleModalOk = () => {
      modalLoading.value = true;
      axios.post("/category/save",category.value).then((response) => {
        //后端只要有返回就取消loading效果
        modalLoading.value = false;
        const data=response.data;
        if (data.success){
          modalVisible.value = false;

        //  重新加载列表
          handleQuery();
        }else{
          message.error(data.message);
        }
      });
    };

    //编辑
    const edit = (record: any)=>{
      modalVisible.value = true;
      category.value = Tool.copy(record);
    };
    //新增
    const add = ()=>{
      modalVisible.value = true;
      category.value = {};
    }
    //删除
    const handleDelete = (id: number)=>{
      axios.delete("/category/delete/"+id).then((response) => {
        const data = response.data;
        if (data.success){
          handleQuery();
        }
      });
    };

    onMounted(()=>{
      handleQuery();
    })

    return {
      param,
      // categorys,
      level1,
      columns,
      loading,

      edit,
      add,

      category,
      modalVisible,
      modalLoading,
      handleModalOk,
      handleDelete,
      handleQuery

    }
  }
});
</script>

<style scoped>
img {
  width: 50px;
  height: 50px;
}
</style>
